WO1999038419A1 - Siege ergonomique avec partie femorale inclinee - Google Patents

Siege ergonomique avec partie femorale inclinee Download PDF

Info

Publication number
WO1999038419A1
WO1999038419A1 PCT/AU1999/000066 AU9900066W WO9938419A1 WO 1999038419 A1 WO1999038419 A1 WO 1999038419A1 AU 9900066 W AU9900066 W AU 9900066W WO 9938419 A1 WO9938419 A1 WO 9938419A1
Authority
WO
WIPO (PCT)
Prior art keywords
cushioning material
seat
cushioning
person
density
Prior art date
Application number
PCT/AU1999/000066
Other languages
English (en)
Inventor
Jeffrey Herbert
Original Assignee
Heygarth South Pty. Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Heygarth South Pty. Ltd. filed Critical Heygarth South Pty. Ltd.
Priority to NZ506028A priority Critical patent/NZ506028A/xx
Priority to US09/601,299 priority patent/US6361116B1/en
Priority to AU24039/99A priority patent/AU752312B2/en
Publication of WO1999038419A1 publication Critical patent/WO1999038419A1/fr

Links

Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C7/00—Parts, details, or accessories of chairs or stools
    • A47C7/02—Seat parts
    • A47C7/18—Seat parts having foamed material included in cushioning part
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C7/00—Parts, details, or accessories of chairs or stools
    • A47C7/02—Seat parts
    • A47C7/029—Seat parts of non-adjustable shape adapted to a user contour or ergonomic seating positions

Definitions

  • This invention relates to a seat such as a chair but also incudes other seating appliances such as sofas, couches, stools and the like.
  • This invention relates to an improvement or modification to the seat disclosed in our international application No. PCT/AU94/00513 (WO 95/06424) The contents of this international application are incorporated into this specification by this reference.
  • the seat disclosed in the above-mentioned international application is intended to improve seating posture and to ensure that proper bodily functions are not impaired or adversely affected when a person is seated.
  • This invention relates to further improvements or modifications to further improve seating posture.
  • a first aspect of the present invention may be said to reside in a seat including: a seating portion for connection to a base so that the seating apparatus can be supported on the ground, said seat portion having a front, a rear and two sides; said seat portion having, (a) an upwardly inclined portion which inclines upwardly from the front of the seat portion to a first intermediate position between the front and rear of the seat portion,
  • the upwardly inclined portion is for supporting the femurs of a person so that the femurs and knees are supported in a position below the person's - 2 - acetabulum, said substantially flat horizontal portion being for receiving and holding the ischial bones when the person sits down and said inclined support portion being for supporting the person's gluteal muscles and sacra iliac ligaments;
  • the upwardly inclined portion including a first cushioning material;
  • the flat horizontal portion including a second cushioning material; the first cushioning material being denser than the second cushioning material so that when a person sits on the seating apparatus, the second cushioning material is compressed and holds the ischial bones and the first cushioning material which is of higher density than the second cushioning material prevents a person from slipping forward on the seat; and the upwardly inclined portion being curved or concave so that side parts of the upwardly inclined portion adjacent the two sides of the seat portion are closer to the
  • the substantially flat horizontal portion is formed from the same cushioning material as the upwardly inclined portion and the inclined support portion and is mechanically altered to provide a density which is less than the density of the upwardly inclined portion and the inclined support portion.
  • the cushioning material of the substantially flat horizontal portion is mechanically altered by providing cuts or grooves in the cushioning material to decrease the density of the cushioning material. - 3 -
  • the upwardly inclined portion, the inclined support portion and substantially flat horizontal portion include an integral cushioning member.
  • a seat including: a seating portion for connection to a base so that the seating apparatus can be supported on the ground, said seat portion having a front and a rear; said seat portion having,
  • the upwardly inclined portion is for supporting the femurs of a person so that the femurs and knees are supported in a position below the person's acetabulum, said mid portion being for receiving and holding the ischial bones when the person sits down and said inclined support portion being for supporting the person's gluteal muscles and sacra iliac ligaments;
  • the upwardly inclined portion including a first cushioning material; the mid portion including a second cushioning material; the first cushioning material being denser than the second cushioning material so that when a person sits on the seating apparatus, the second cushioning material is compressed and holds the ischial bones and the first cushioning material which is of higher density than the second
  • first and second cushioning material being formed from dense cushioning material and the second cushioning material being mechanically altered to decrease its density so as to provide the second cushioning material with a density which is less then the first cushioning material .
  • the second cushioning material is mechanically altered by providing cuts or grooves in the second cushioning material to thereby enable the cushioning material to compress more than the first cushioning material .
  • the inclined support portion is formed from a third cushioning material which is of substantially the same density as the first cushioning material.
  • the first cushioning material, second cushioning material and third cushioning material include an integral cushioning member of cushioning material and wherein the integral cushioning member is provided with cuts or grooves to decrease the density of the cushioning member in the vicinity of the cuts and grooves to thereby provide the second cushioning material which is less dense than the first cushioning material.
  • the inclined support portion includes a wedge- shaped cushioning member of dense cushioning material which is coupled to the integral cushioning member to form the inclined support portion, the wedge-shaped cushioning member being formed from a fourth cushioning material which is denser than the second cushioning material.
  • the first cushioning material is the same as the fourth cushioning material.
  • Figure 1 is a side view of a seat embodying the invention
  • Figure 2 is an underneath view of the seat of Figure 1;
  • Figure 3 is a plan view of the seat of Figure 1; and Figure 4 is a rear view of the seat of Figure 1.
  • a seat 10 which includes a base plate 12.
  • the base plate 12 is to be connected to a stand (not shown) which may include adjustment mechanisms for altering the height and also possibly the inclination of the seat 10.
  • a back rest (not shown) may also be coupled to the stand.
  • the base plate 12 includes a front inclined portion 12a which merges into a substantially flat section 12b.
  • the seat 10 includes a seating portion generally designated by reference 14 which is connected to the base plate 12 by adhering the seating portion 14 to the base plate 12.
  • the seating portion 14 includes a cushioning member 16 of high density which may be cut from a block of high density foam material. When the cushioning member 16 is cut from the block of foam or otherwise provided, it will generally be in the form of a flat panel or sheet. When the member 16 is adhered to the base plate 12, the member 16 will take up the shape of the base plate 12 to provide an upwardly inclined portion 18 which will be described in more detail hereinafter.
  • a cushioning member 20 of wedge-shaped configuration in side view shown in Figure 1 and of generally curved or concave configuration in plan as shown in Figure 3 is adhered to the member 16.
  • the member 20 has side parts 22 adjacent sides 24 of the seating portion 14 which extend closer to front F - 6 - of the seat then a mid-portion 26 on a front edge of the member 20.
  • the member 20 provides a bowl-shaped or curved support region toward the rear of the seat .
  • the upwardly inclined portion 18 extends from the front F of the seat 10 to a first intermediate point PI.
  • a generally horizontal flat portion extends from the intermediate point PI to a second intermediate point P2 which may coincide with the midpoint 26 which is the part of the front edge 30 of the member 20 which is closest to the rear R of the seat.
  • a substantially flat region 40 is provided between the first intermediate point PI and the second intermediate point P2. As is best shown in Figure 2, part of the side portions 22 of the member 20 overlap the horizontal portion 40 at the sides 24 of the seat portion 14.
  • the wedge-shaped member 20 in combination with the member
  • the cushioning member 16 which forms the upwardly inclined portion 18, the flat horizontal portion 40 and the lower part of the inclined support portion 50 is formed from high density cushioning material.
  • the wedge member 20 is also formed from the same high density cushioning material 20 and, as is explained above, may be glued to the member 16.
  • the members 16 and 20 could be cut from a block of high-density cushioning material and formed - 7 - integrally rather than separately as described above.
  • the flat portion 40 is made to be of less density than the upwardly inclined portion 18 and also the inclined support portion 50 by providing a plurality of V-shaped grooves or cuts 60 in the cushioning member 16 between the points PI and P2.
  • the grooves or cuts 60 extend right across the lower surface of the cushioning member 16 from one side 24 to the other side 24 of the seating portion 14.
  • the cuts 60 act to mechanically alter the cushioning material 60 in the vicinity between the points Pi and P2 so as to reduce the overall density of the cushioning material between the points PI and P2 and therefore of the flat horizontal portion 40 as compared to the upwardly inclined portion 18 and the inclined support portion 50.
  • the upwardly inclined portion 18 supports the femurs of a person so that the femurs and knees are supported in a position below the person's acetabulum.
  • the horizontal flat portion 40 receives and holds the ischial bones when the person sits down and the inclined support portion wraps around and supports the person's gluteal muscles and sacra iliac ligaments.
  • the lower density of the horizontal portion 40 results in that portion compressing more than the upwardly inclined portion 18 and also the inclined support portion 50 so as to hold the ischial bones and prevent a person from slipping forward. This compression generally forms a slight bowl or dishing of the horizontal portion 40 whilst the inclined portion 18 remains substantially uncompressed so as to form a barrier between the compressed horizontal portion 40 and the inclined support portion 18 which prevents a person from slipping forward or sliding on the seat.
  • the upwardly inclined portion 18 is angled at an angle of approximately 30° to 50° with respect to the horizontal and the rear inclined support portion 50 is - 8 - angled at an angle of approximately 30° to 50° with respect to the horizontal.
  • the length of the generally horizontal portion between the points PI and P2 is in the order of 160 to 180 mm.
  • the seating portion 14 may be completed by an upper upholstery or cushioning member 80 which extends completely over the upper surface of the seating portion 40 and which is formed from relatively low density foam material.
  • a fabric cover or the like (not shown) may be provided over the seating portion 14 to complete the seat 10.

Abstract

L'invention concerne un siège possédant une plaque de base (12) sur laquelle est monté un élément coussin (16). La plaque de base (12) et l'élément coussin (16) possèdent une partie à inclinaison verticale (12a, 18). Un coussin (20), monté sur l'élément coussin (16), possède des parties latérales (22) qui forment une zone d'appui incurvée ou en forme de bol, située vers l'arrière du siège. Une partie horizontale plate s'étend entre un premier point intermédiaire (P1) et un deuxième point intermédiaire (P2) qui coïncide avec un centre (26) du bord avant du coussin (20). On peut modifier le matériau du coussin (20) par procédé mécanique en faisant des entailles ou des encoches (60) de manière à diminuer la densité réelle de l'élément coussin (16). Un revêtement extérieur ou un élément coussin (80) recouvre complètement la surface extérieure du siège.
PCT/AU1999/000066 1998-02-02 1999-01-29 Siege ergonomique avec partie femorale inclinee WO1999038419A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
NZ506028A NZ506028A (en) 1998-02-02 1999-01-29 Ergonomic seat with inclined femoral portion
US09/601,299 US6361116B1 (en) 1998-02-02 1999-01-29 Ergonomic seat with inclined femoral portion
AU24039/99A AU752312B2 (en) 1998-02-02 1999-01-29 Ergonomic seat with inclined femoral portion

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
AUPP1570A AUPP157098A0 (en) 1998-02-02 1998-02-02 Ergonomic seat with inclined femoral portion
AUPP1570 1998-02-02
CA002314847A CA2314847C (fr) 1998-02-02 2000-08-02 Siege ergonomique avec portion femorale inclinee

Publications (1)

Publication Number Publication Date
WO1999038419A1 true WO1999038419A1 (fr) 1999-08-05

Family

ID=25645710

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AU1999/000066 WO1999038419A1 (fr) 1998-02-02 1999-01-29 Siege ergonomique avec partie femorale inclinee

Country Status (5)

Country Link
US (1) US6361116B1 (fr)
AU (2) AUPP157098A0 (fr)
CA (1) CA2314847C (fr)
NZ (1) NZ506028A (fr)
WO (1) WO1999038419A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004033253A1 (fr) * 2002-10-11 2004-04-22 Scania Cv Ab (Publ) Partie d'assise pour siege du conducteur

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2002300266B2 (en) * 1998-02-02 2004-03-18 Heygarth South Pty. Ltd. Ergonomic seat with inclined femoral portion
US8167326B2 (en) * 2009-01-23 2012-05-01 Izinger Maayan Seat cushion

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1115421B (de) * 1958-08-01 1961-10-19 Matthias Zeller Sitzmoebel mit gegeneinander geneigten Flaechenteilen des Sitzes
WO1986007528A1 (fr) * 1985-06-20 1986-12-31 Houmann Poulsen Per Siege de chaise
US4690459A (en) * 1984-10-19 1987-09-01 Johan Ullman Working chair
WO1987007124A1 (fr) * 1986-05-26 1987-12-03 Peter George Gordon Gregory Element de chaise
WO1991003969A1 (fr) * 1989-09-21 1991-04-04 Alan Powell Siege
US5137333A (en) * 1990-01-25 1992-08-11 Rolliture Corporation Seat cushion
WO1992015232A1 (fr) * 1991-03-01 1992-09-17 Heygarth South Pty. Ltd. Siege anatomique
WO1995006424A1 (fr) * 1993-08-31 1995-03-09 Heygarth South Pty. Ltd. Systeme de siege ergonomique dont la partie femorale est inclinee
US5452940A (en) * 1993-08-04 1995-09-26 Maier; Edmund K. Pressure relief back cushion

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA957440A (en) * 1972-06-02 1974-11-05 Bernard C. Watkin Lumber support pads
CH558158A (de) 1973-05-18 1975-01-31 Bolleter Emil Stuhl mit rueckenlehne, insbesondere buerostuhl.
DE7729578U1 (de) 1977-09-23 1978-01-12 Metzeler Schaum Gmbh, 8940 Memmingen Schaumstoffauflage fuer fahrzeugsitze
US4696516A (en) * 1985-10-31 1987-09-29 Dae-Ah Human Engineering Inc. Contoured aircraft and car seat
AU596184B2 (en) 1986-05-26 1990-04-26 Darville Trade & Finance Limited A chair member
JPH056824Y2 (fr) * 1986-12-02 1993-02-22
US4930171A (en) * 1989-05-03 1990-06-05 International Healthcare Products, Inc. Contour retaining support cushion
US5317773A (en) * 1992-02-20 1994-06-07 Graebe Robert H Waterblown foam base
US5687436A (en) * 1996-08-09 1997-11-18 Jay Medical Ltd. Wheelchair seating cushion having adjustable top contour shape

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1115421B (de) * 1958-08-01 1961-10-19 Matthias Zeller Sitzmoebel mit gegeneinander geneigten Flaechenteilen des Sitzes
US4690459A (en) * 1984-10-19 1987-09-01 Johan Ullman Working chair
WO1986007528A1 (fr) * 1985-06-20 1986-12-31 Houmann Poulsen Per Siege de chaise
WO1987007124A1 (fr) * 1986-05-26 1987-12-03 Peter George Gordon Gregory Element de chaise
WO1991003969A1 (fr) * 1989-09-21 1991-04-04 Alan Powell Siege
US5137333A (en) * 1990-01-25 1992-08-11 Rolliture Corporation Seat cushion
WO1992015232A1 (fr) * 1991-03-01 1992-09-17 Heygarth South Pty. Ltd. Siege anatomique
US5452940A (en) * 1993-08-04 1995-09-26 Maier; Edmund K. Pressure relief back cushion
WO1995006424A1 (fr) * 1993-08-31 1995-03-09 Heygarth South Pty. Ltd. Systeme de siege ergonomique dont la partie femorale est inclinee

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004033253A1 (fr) * 2002-10-11 2004-04-22 Scania Cv Ab (Publ) Partie d'assise pour siege du conducteur

Also Published As

Publication number Publication date
AU2403999A (en) 1999-08-16
CA2314847A1 (fr) 2002-02-02
CA2314847C (fr) 2009-07-28
US6361116B1 (en) 2002-03-26
NZ506028A (en) 2002-12-20
AU752312B2 (en) 2002-09-12
AUPP157098A0 (en) 1998-02-19

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